.why-qvai {
    background-color: #0F0F0F;
    position: relative;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    border-radius: 12px;
    margin: 2rem;
    position: relative;
}

.why-qvai-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
    margin: 0 auto;
    width: 100%;
}

.why-qvai-card {
    background: rgba(20, 20, 20, 0.95);
    border-radius: 16px;
    padding: 2.5rem;
    transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
    transform: translateY(30px);
    opacity: 0;
    animation: slideUpFade 0.8s cubic-bezier(0.4, 0, 0.2, 1) forwards;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.why-qvai-card:nth-child(1) { animation-delay: 0.1s; }
.why-qvai-card:nth-child(2) { animation-delay: 0.2s; }
.why-qvai-card:nth-child(3) { animation-delay: 0.3s; }
.why-qvai-card:nth-child(4) { animation-delay: 0.4s; }

.why-qvai-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 50%;
    height: 3px;
    background: linear-gradient(90deg, 
        transparent,
        var(--primary-color),
        transparent);
    opacity: 0;
    transition: all 0.5s ease;
}

.why-qvai-card::after {
    content: '';
    position: absolute;
    inset: 1px;
    background: radial-gradient(circle at var(--mouse-x, 50%) var(--mouse-y, 50%), 
                rgba(138, 43, 226, 0.1) 0%,
                rgba(138, 43, 226, 0.05) 25%,
                transparent 50%);
    opacity: 0;
    transition: opacity 0.5s;
    pointer-events: none;
    border-radius: 15px;
}

.why-qvai-card:hover {
    transform: translateY(-8px);
    border-color: rgba(138, 43, 226, 0.3);
}

.why-qvai-card:hover::before {
    opacity: 1;
    width: 80%;
}

.why-qvai-card:hover::after {
    opacity: 1;
}

.why-qvai-card-title {
    font-size: 1.4rem;
    font-weight: 700;
    background: var(--primary-color);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 0.5rem;
    letter-spacing: 0.5px;
    position: relative;
    display: inline-block;
}

.why-qvai-card-title::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: -8px;
    width: 40px;
    height: 2px;
    background: var(--primary-color);
    transition: width 0.3s ease;
}

.why-qvai-card:hover .why-qvai-card-title::after {
    width: 100%;
}

.why-qvai-card-text {
    font-size: 1rem;
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.7;
    margin-top: 1rem;
}

@media (max-width: 1200px) {
    .why-qvai-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .why-qvai {
        padding: 2rem 1rem;
        margin: -1rem;
    }

    .why-qvai-title {
        font-size: 1.1rem;
        text-align: left;
        margin: 0 0 2rem 0;
        padding: 0 1.5rem;
        width: 100%;
        max-width: 100%;
        box-sizing: border-box;
    }

    .why-qvai-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
        width: 100%;
        max-width: 100%;
        padding: 0;
    }

    .why-qvai-card {
        width: 100%;
        max-width: 100%;
        box-sizing: border-box;
        margin: 0;
        padding: 1.5rem;
    }

    .why-qvai-title,
    .why-qvai-card {
        margin-right: 1rem;
    }

    .why-qvai-card-title {
        font-size: 1.2rem;
        margin-bottom: 1rem;
    }

    .why-qvai-card-text {
        font-size: 0.95rem;
        line-height: 1.6;
    }
}